Patent Number: 8,573,309

Title: Liquid rod pump and method

Abstract: The present invention comprises a downhole unit that includes at least one plunger and that uses a power fluid to recover production fluid from a well. The downhole unit recovers production fluid and brings it to the surface of the well during both the downward and upward motion of the at least one plunger. The downhole unit can also optionally dispose of unwanted fluids in a formation.

Inventors: Simmons; Eugene Darrell (Roswell, NM)


International Classification: E21B 43/12 (20060101); F04B 9/109 (20060101); F04B 9/113 (20060101)

Expiration Date: 1/05/12017